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VOP_ADVLOCK(9freebsd)

June 30, 1999

freebsd-manpages

Manual pages for a GNU/kFreeBSD system

NAME

VOP_ADVLOCK - advisory record locking

SYNOPSIS


.In sys/param.h
.In sys/vnode.h
.In sys/fcntl.h
.In sys/lockf.h int VOP_ADVLOCK struct vnode *vp caddr_t id int op struct flock *fl int flags

DESCRIPTION

The arguments are:
vp The vnode being manipulated.
id The id token which is changing the lock.
op The operation to perform (see fcntl(2)).
fl Description of the lock.
flags One of more of the following:
F_RDLCK
Shared or read lock.
F_UNLCK
Unlock.
F_WRLCK
Exclusive or write lock.
F_WAIT Wait until lock is granted.
F_FLOCK
Use flock(2) semantics for lock.
F_POSIX
Use POSIX semantics for lock.
This entry point manipulates advisory record locks on the file. Most file systems delegate the work for this call to lf_advlock.

RETURN VALUES

Zero is returned on success, otherwise an error is returned.

AUTHORS

This manual page was written by
.An Doug Rabson .
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